Tossup

This process is performed on saturated liquids like R22 before condensation and throttling steps in most air conditioners. This process is performed immediately before a spark plug ignites fuel in a four-stroke engine, (-5[1])while it causes autoignition (10[1])in diesel engines. Air undergoes (10[1])this process (10[1])at every peak of a sound wave. The surroundings (10[2])do positive PV work on the system in this process, which (10[1])occurs in the last two steps of the Carnot (“kar-NO”) cycle. This process, which increases pressure by Boyle’s law, is (10[1])performed by lowering a piston and typically follows (10[1])an expansion step. For 10 points, name this process in which a gas is forced into a smaller volume. ■END■ (10[1])

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